Pith Number

pith:H52MQ42J

pith:2010:H52MQ42JHJPNNI244KC2K4Q4MN

not attested not anchored not stored refs pending

A Spitzer Survey of Protoplanetary Disk Dust in the Young Serpens Cloud: How do Dust Characteristics Evolve with Time?

Bruno Merin, Ewine F. van Dishoeck, Fred Lahuis, Isa Oliveira, Jean-Charles Augereau, Jes K. Jorgensen, Joanna M. Brown, Johan Olofsson, Klaus M. Pontoppidan, Vincent C. Geers

arxiv:1003.3791 v1 · 2010-03-19 · astro-ph.SR · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H52MQ42JHJPNNI244KC2K4Q4MN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:08:25.360093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f74c873493a5ed6a35ce285a5721c634059afcd739122e6f58def2ae33e327b

Aliases

arxiv: 1003.3791 · arxiv_version: 1003.3791v1 · doi: 10.48550/arxiv.1003.3791 · pith_short_12: H52MQ42JHJPN · pith_short_16: H52MQ42JHJPNNI24 · pith_short_8: H52MQ42J

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/H52MQ42JHJPNNI244KC2K4Q4MN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3f74c873493a5ed6a35ce285a5721c634059afcd739122e6f58def2ae33e327b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "593a099670dc8d99181197c3754140a920ee1536edced33038a500f94dca248f",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-03-19T13:32:01Z",
    "title_canon_sha256": "d25e0a02a1851f9cc672951fda308ea68c7652d76b660b33615a56097aa00342"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.3791",
    "kind": "arxiv",
    "version": 1
  }
}